Good idea, however as someone else stated, insurance to cover for screw-ups and fails would be astronomical. Plus there are to many lazy bastages out there to make this worth it...

For those of use with Nazi like Home Owners Associations it's a terrific idea, but you're right how the insurance would be high and John Q Public loves breaking **** that doesn't belong to them. I'd imagine a membership based entrance to cover insurance and keep track of who's in which bay using which tools would deter the less reputable customers.